Spring boot搭建web应用集成thymeleaf模板实现登陆

<?xml version="1.0" encoding="utf-8"?>
<project xmlns="http://maven.apache.org/pom/4.0.0"
     xmlns:xsi="http://www.w3.org/2001/xmlschema-instance"
     xsi:schemalocation="http://maven.apache.org/pom/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelversion>4.0.0</modelversion>
   <groupid>exam</groupid>
   <artifactid>examsystem</artifactid>
   <packaging>jar</packaging>
   <version>1.0-snapshot</version>
  <!--spring boot 的基本配置 -->
  <parent>
    <groupid>org.springframework.boot</groupid>
    <artifactid>spring-boot-starter-parent</artifactid>
    <version>1.2.7.release</version>
  </parent>
  <!--基本配置，设置编码，入口，jdk版本 -->
  <properties>
    <project.build.sourceencoding>utf-8</project.build.sourceencoding>
    <start-class>com.study.app</start-class>
    <java.version>1.7</java.version>
    <shiro.version>1.3.0</shiro.version>
  </properties>

  <!-- 设置编译 -->
  <build>
    <plugins>
      <plugin>
        <groupid>org.springframework.boot</groupid>
        <artifactid>spring-boot-maven-plugin</artifactid>
        <dependencies>
        </dependencies>
      </plugin>
    </plugins>
  </build>


  <dependencies>
    <dependency>
      <groupid>org.springframework.boot</groupid>
      <artifactid>spring-boot-starter-web</artifactid>
    </dependency>

    <!--jpa的jar包 ，操作数据库的，类似hibernate-->
    <dependency>
      <groupid>org.springframework.boot</groupid>
      <artifactid>spring-boot-starter-data-jpa</artifactid>
    </dependency>
    <!--thymeleaf模板jar-->
    <dependency>
      <groupid>org.springframework.boot</groupid>
      <artifactid>spring-boot-starter-thymeleaf</artifactid>
    </dependency>
    <!--mysql驱动-->
    <dependency>
      <groupid>mysql</groupid>
      <artifactid>mysql-connector-java</artifactid>
    </dependency>

    <!-- 添加restfull的支持 -->
    <dependency>
      <groupid>javax.ws.rs</groupid>
      <artifactid>javax.ws.rs-api</artifactid>
      <version>2.0.1</version>
    </dependency>

    <dependency>
      <groupid>net.bull.javamelody</groupid>
      <artifactid>javamelody-core</artifactid>
      <version>1.53.0</version>
    </dependency>
    <!-- 添加 druid 数据源连接池-->
    <dependency>
      <groupid>com.alibaba</groupid>
      <artifactid>druid</artifactid>
      <version>1.0.25</version>
    </dependency>

    <!-- 添加权限认证-->
    <dependency>
      <groupid>org.apache.shiro</groupid>
      <artifactid>shiro-core</artifactid>
      <version>${shiro.version}</version>
    </dependency>
    <dependency>
      <groupid>org.apache.shiro</groupid>
      <artifactid>shiro-spring</artifactid>
      <version>${shiro.version}</version>
    </dependency>
    <dependency>
      <groupid>org.apache.shiro</groupid>
      <artifactid>shiro-web</artifactid>
      <version>${shiro.version}</version>
    </dependency>
    <dependency>
      <groupid>org.apache.shiro</groupid>
      <artifactid>shiro-ehcache</artifactid>
      <version>${shiro.version}</version>
    </dependency>
    <!--thymeleaf 和 shiro 的整合 -->
    <dependency>
      <groupid>com.github.theborakompanioni</groupid>
      <artifactid>thymeleaf-extras-shiro</artifactid>
      <version>1.2.1</version>
    </dependency>
  </dependencies>
</project>

import org.springframework.boot.springapplication;
import org.springframework.boot.autoconfigure.enableautoconfiguration;
import org.springframework.boot.autoconfigure.springbootapplication;
import org.springframework.boot.context.web.springbootservletinitializer;
import org.springframework.context.annotation.componentscan;
import org.springframework.context.annotation.configuration;

/**
 * created by on 2016/12/8.
 */
@configuration
@componentscan
@enableautoconfiguration
public class app extends springbootservletinitializer {


  public static void main(string[] args) {
    springapplication.run(app.class, args);
  }

}

 <form class="form-signin" role="form" th:action="@{/user/login}" th:method="post">
    <input type="text" class="form-control" placeholder="用户名" required="required" name="username" />
    <input type="password" class="form-control" placeholder="密码" required="required" name="passwprd" />
    <button class="btn btn-lg btn-warning btn-block" type="submit">登录</button>
    <label class="checkbox">
      <input type="checkbox" value="remember-me" /> 记住我
    </label>
  </form>

package com.study.system.contrller;

import com.study.model.contrller.basecontrller;
import com.study.model.po.user;
import com.study.system.services.userservices;
import org.springframework.beans.factory.annotation.autowired;
import org.springframework.stereotype.controller;
import org.springframework.web.bind.annotation.requestmapping;
import org.springframework.web.bind.annotation.requestmethod;
import org.springframework.web.bind.annotation.restcontroller;

import java.util.list;


/**
 *
 * 用户管理
 * created by on 2016/12/12.
 */

@controller
@requestmapping(value = "/user")
public class usercontrller extends basecontrller {

  @requestmapping(value="/login",method= requestmethod.post)
  public string login(user user){
    try{
      if(userservices.hasuser(user)){
        return "redirect:/user/index";
      }else{
        return "redirect:/";
      }
    }catch (exception e){
      logger.error("登陆失败："+e,e);
    }
    return "redirect:/";
  }

  @requestmapping(value="/index",method= requestmethod.get)
  public string index(){
    try{

    }catch (exception e){
      logger.error("登陆失败："+e,e);
    }
    return "page/index/index";
  }


  @autowired
  private userservices userservices;

}